Annex OrbisFMCSA · SAFETY STATISTICS
What puts trucks and drivers out of service?
The most frequent out-of-service violations in our indexed FMCSA inspection records, ranked by violation code.
Recorded violations13,571,170
Out-of-service violations2,411,961
Violation codes2,379
All violation codes
Highest OOS count first. Codes with no recorded OOS occurrences appear last.
| Violation code | Description | OOS occurrences | All occurrences | Share of all OOS |
|---|---|---|---|---|
| 393.75A1-TAOBETA | Tires - All others, more than one ply is exposed in the sidewall and the area exceeds 2 square inches. | 2,567 | 2,733 | 0.11% |
| 396.3A1-DLDSUJBCB | Driveline/Driveshaft - Any missing, broken or loose universal joint bearing cap bolt, bearing strap or retainer bolt | 2,536 | 2,580 | 0.11% |
| 395.3A2-PROP | Driving beyond 14 hour duty period (Property carrying vehicle) | 2,517 | 10,395 | 0.1% |
| 393.11 | No or defective lighting devices or reflective material as required | 2,481 | 92,586 | 0.1% |
| 393.110B2II-C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo longer than 5 feet and no more than 10 feet | 2,478 | 2,496 | 0.1% |
| 393.47A-BCLMBD-SA | Drum Brake - Cracked/loose/missing lining/pad on a steering axle | 2,418 | 2,606 | 0.1% |
| 393.110B1-C | Cargo - Insufficient tiedowns (w/o headerboard/blocking) for article(s) of cargo 5 feet or less and 1,100 lbs. or less | 2,376 | 2,399 | 0.1% |
| 392.4A-DOSU | Drugs/Other Substances - Operate a CMV while under the influence or evidence of use within the past 24 hours. | 2,357 | 2,386 | 0.1% |
| 393.45B2-B-VAC | Brake - Vacuum hose(s) or line(s) restricted/abraded/chafed through outer cover-to-cord ply crimped/cracked/broken | 2,352 | 3,896 | 0.1% |
| 393.45A-AJS | Air Brake tubing improperly joined or spliced | 2,345 | 2,592 | 0.1% |
| 395.8K2-HOSRC | HOS (Manner) - Driver failed to retain a copy of each record of duty status for the previous 7 consecutive days which shall be in his/her possession and available | 2,344 | 3,728 | 0.1% |
| 393.75A2-TAOBB | Tires - All others, bump or bulge related to tread or sidewall separation | 2,338 | 3,370 | 0.1% |
| 393.75A2-TAOTLM | Tires - All others, 75% of the tread width is loose/missing in excess of 12 inches of circumference | 2,327 | 2,433 | 0.1% |
| 393.207C-SBML | Suspension - Broken main leaf spring | 2,249 | 2,259 | 0.09% |
| 393.45UV | Brake Tubing and Hose Adequacy Under Vehicle | 2,237 | 5,021 | 0.09% |
| 392.9 | Driver may not operate a CMV without proper load securement | 2,226 | 2,863 | 0.09% |
| 393.87A-FPLR | Flag - Required rear flag - no flag on the rear of a projecting load - when load is longer than 4 feet. | 2,182 | 2,238 | 0.09% |
| 393.110C-C | Cargo - Insufficient tiedowns (with headerboard/blocking). At least one tiedown for every 10 feet of article length, or fraction thereof | 2,151 | 2,168 | 0.09% |
| 396.7A-UOC | Unsafe Operations - Severe Post Crash Condition | 2,141 | 2,233 | 0.09% |
| 393.45PC | Brake Tubing and Hose Adequacy - Connections to Power Unit | 2,121 | 5,910 | 0.09% |
| 177.817A-HMSP | HM (Shipping Papers) - Operate a motor vehicle without a required shipping paper. NOTE: An error in the shipping description or an incomplete shipping description | 2,117 | 2,173 | 0.09% |
| 393.118D-CDL | Dressed Lumber/Similar Building Products - Improper Securement of bundles transported using more than one tier. | 2,117 | 2,119 | 0.09% |
| 392.15 | Driver Prohibited from Performing Safety Sensitive Functions per 382.501(a) in the Drug and Alcohol Clearinghouse | 2,115 | 2,136 | 0.09% |
| 393.17B2-LTSDM | Lighting - Turn signal - Driveaway - any missing. | 2,105 | 2,132 | 0.09% |
| 383.23A2-LCDL | Endorsements - (CDL) - Operate a CMV without proper endorsements on operators license | 2,095 | 2,112 | 0.09% |
| 385.337B-OOSO | OOS Order - Motor carrier operating a CMV while an existing out-of-service order is in effect: New Entrant - Refusal of Audit/No Contact | 2,047 | 2,130 | 0.08% |
| 396.3A1DSUJ | Universal Joint with Loose, Broken, or Missing Component, or Bearing Strap | 2,043 | 2,184 | 0.08% |
| 395.3A3-PROP | Driving beyond 11 hour driving limit. (Property Carrying Vehicle) | 2,036 | 8,390 | 0.08% |
| 392.2-SLLEQP | State/Local Laws - Violation of state and local law - Equipment violation. | 1,992 | 102,481 | 0.08% |
| 392.2 | Violation of Local Laws - Explain | 1,978 | 87,723 | 0.08% |
| 393.201A-FRBFC | Frame - Cracked siderail bottom flange at least 1 inch long | 1,973 | 2,141 | 0.08% |
| 393.47B-BMBCBD-SA | Drum Brake - Mismatched brake chamber sizes on a steering axle | 1,946 | 1,953 | 0.08% |
| 393.128 | No/improper securement of vehicles | 1,939 | 2,093 | 0.08% |
| 177.817A | No or improper shipping papers (carrier) | 1,900 | 2,310 | 0.08% |
| 393.75A1-TFSMF | Tires - Front, sidewall is cut/worn/damaged exposing ply cord | 1,872 | 2,010 | 0.08% |
| 396.5B-HLIW | Hubs - Oil and/or Grease Leaking from hub - inner wheel | 1,870 | 6,366 | 0.08% |
| 395.3A1-HOSPD | HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time | 1,839 | 28,419 | 0.08% |
| 393.201A-FRSC | Frame - Cracked siderail web around the radius into the bottom flange | 1,810 | 1,859 | 0.08% |
| 396.3A1B | Brakes (general) Explain: | 1,797 | 42,607 | 0.07% |
| 396.5A-HNL | Hubs - No visible or measurable lubricant showing in the hub | 1,780 | 1,847 | 0.07% |
| 392.4A-POS | Driver on duty and in possession of a narcotic drug / amphetamine | 1,777 | 1,829 | 0.07% |
| 177.834A | Package not secure in vehicle | 1,744 | 1,800 | 0.07% |
| 393.201A-FRWC | Frame - Cracked siderail web at least 1-1/2 inches directed toward the bottom flange | 1,737 | 1,818 | 0.07% |
| 396.3A1-AR | Brake - Defective Air Reservoir | 1,735 | 2,721 | 0.07% |
| 393.106C1-C | Cargo - Cargo not immobilized or secured against rolling | 1,720 | 1,800 | 0.07% |
| 395.8E1-PC | False Record of Duty Status - Improper use of Personal Conveyance Exception | 1,696 | 8,840 | 0.07% |
| 391.15A-SIN | Driving a CMV while disqualified. Suspended for safety-related or unknown reason and in the state of drivers license issuance | 1,691 | 1,728 | 0.07% |
| 395.3A2-HOSPD | HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim | 1,683 | 30,279 | 0.07% |
| 393.51C-BAPG | Air Brake - Inoperative/defective primary or secondary pressure gauge | 1,664 | 1,711 | 0.07% |
| 393.110 | Failing to meet minimum tiedown requirements | 1,643 | 1,752 | 0.07% |
How to read this report
Each indexed violation identity counts once. Only a violation explicitly marked out of service contributes to the OOS count. Repeated copies are counted once; conflicting code or OOS values are excluded. Unknown flags remain in all occurrences but not in the OOS count. Missing codes appear as “Code not reported”.
These are violation counts, not unique inspections, trucks, drivers, or carrier-wide out-of-service orders. Coverage describes the currently indexed inspection dataset, not all historical FMCSA records. Frequencies do not establish crash causation or a carrier’s safety rating.
Unknown OOS flags: 112 · Conflicting records excluded: 0
FMCSA source data ↗